Lasting-machine.



P'ATENTED 'APR. 14, 1903.

C. EISENBERG. LASTING MACHINE.

APPLICATION FILED AUG.11, 1899.

- H0 MODEL.

UNITED STATES aTnnrT Orrrcn.

OHASKEL EISENBERG, 0F BERLIN, GERMANY.

LASTlNG-MACHINE.

SPECIFICATION forming part of Letters Fatent No. 725,233, dated April 14, 11903. Application filed August 11, 1899. $erial No. 726,849. (No model To all whom it mag concern.-

Be it known that I, CHASKEL EISENBERG, a subject of the Emperor of Germany, and a resident of Berlin, Germany, have invented certain new and useful Improvements in Lasting-Machines, of which the following isa specification.

In order to render the present specification moreeasily understood, reference is bad to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure 1 is a cross-section showing the general arrangement of the machine. Fig. 2 is a top'plan View of the machine, and Fig. 3 is a sectional detail showing the action of the means for pressing the upper against the sole.

According to the present invention resilient wiper-plates f are employed to press the leather of the upper. beneath the inner sole. These plates are cut approximately to the shape of the sole and are provided with ta-' per-ed overlapping ends g, one end being slightly depressed and the other slightly raised in parallel planes with each other and with their bodies so that they slide one over the other when forced forward to bring the upper-leather properly around the last. The platesfare removably attached to blocks f, which are moved toward and 'from the sides of the last in guideways h by means of thumbscrews Z, the said blocks being operated in the well-known manner by means of a screwspindle m with right and left hand threads and the plates being capable of a certain amount of play in a vertical plane by reason of their elasticity. In order to properly stretch the leather of the upper over the last, the plates are caused to cooperate with a series of projecting lugs e, secured to and projecting laterally from the sole-form a, con-i stituting the upper part of the last-support ing block b, and which lugs have upwardlyinclined cam-surfaces trending toward the last and beneath the margin of its tread, so that the elastic or flexible plates f will bend and force the leather under the'last, as illustrated at the left-hand side of Fig. 3.

In order to allow the parts to be compressed after the upper has been folded in under the last, the last-support is vertically movable,

as will be seen in Fig. 1, the movement being effected by means of a rack 7c on the support-stem 7c and a pinion d, and the support sustained in its adjusted position by means of ratchet-wheel l and pawl 19; but any suitable means may be employed. This compression is desirable, because at the outset the pressure is just sufficient to enable the lasting-plates to lay the upper snugly over the insole. Any greater pressure might result in such resistance as to cause the lasting-plates to double or to cut the leather of the upper; but when the upper is fairly laid the increased pressure is called for in order to obtain the close contact necessary for properly cementing it. p

,The last itself is clamped down against the form a by means of a spindle c and handwheel 0, the lower end of said spindle fitting into a socket d of the last, Fig. 1. The arrangement of the overlapping ends 9 of the plates f has the efiect of forcing the leather underneath the last at the toe and heel ends of the same without forming creases.

The vertical adjustability of the last-supporting block 1) permits the use of the apparatus for leather of various thicknesses, while the attachment of the platesf by means of the thumb-screws Z and slots in the plates enables them to be easily and conveniently interchanged for work of various kinds.

Having now particularly described and ascertained the nature of my invention and in what manner the same is to be performed, I declare that what I claim is- 1. A lasting-machine comprising resilient Wiper-plates having projecting and overlapping parts at the ends, with means for moving said plates in toward the last, a last-supporting block, and a series of projecting lugs upon the last-supporting block, having inclined surfaces against which the wiper-plates act when so moved, so as to press the upperleather against the inner sole in the manner and for the purpose substantially as described.

2. The combination in a lasting-rnachine,of a frame, an adjustable last-supporting block mounted in said frame, a series of lugs projecting therefrom and inclined along their upper surfaces inwardly and upwardly toward too the last, resilient wiper-plates coacting with plates coact as they move inward, and nneans [0 said inclined surfaces, and means for moving for independently adjusting said plates. said plates toward and from the sole of the In testimony whereof I affix my signature last. i in presence of two witnesses.

3. The combinationinalastin -machine of i n resilient wiper-plates, means for moving CHASKEL EISENBBRG' them toward and from the last, a series of lugs Witnesses:

located beneath the margin of the last and HENRY HASPER, having inclined surfaces with which said VVOLDEMAR I-IAUPT. 

